Trigering Anthocyanin (color pigment)

THZZELJR

Active Member
So I am about to grow a few purple and blue strains and am looking into how to ensure a vibrant color. I understand its purely aesthetic but I am a vain person and want to be the king of purp lol. anyway I know you can turn the temp down to 58 at night last couple weeks and deprive phosphorous. But I have come across some information regarding pansies and their color.
Anthocyanin is also used to monitor levels of ionic hydrogen in solutions. It is pink in acidic solutions (pH < 7), purple in neutral solutions (pH ~ 7), greenish-yellow in alkaline solutions (pH > 7), and colorless in very alkaline solutions where the pigment is completely reduced


Has anyone tried to raise the ph the last week of flower?
Im Hydro but I believe soil is ph of 7 right? Do you find its easier to trigger in soil?

Also what would be the most susceptible strains to turn blue or purp?
I have Cherry OG, royal purple kush (emerald Triangle)
purple haze (G13)
and Blue Widow (Dinafem)

Locally I have only come across this once and this is what I am after
DSCF1437.jpgDSCF1438.jpgDSCF1440.jpgDSCF1442.jpg

Thanks
 

massah

Well-Known Member
When you raise the PH in hydro to around 6.5 you'll starve the plant of phosphorous, potassium, and zinc...as far as that pulling color out...fucked if i know :D
 

THZZELJR

Active Member
I guess that would make sense it helps deprive phosphorous, I guess it cant hurt to just do it. Unfortunately, I can only veg for the next 4 months so I am still in theory mode.
 

massah

Well-Known Member
I guess that would make sense it helps deprive phosphorous, I guess it cant hurt to just do it. Unfortunately, I can only veg for the next 4 months so I am still in theory mode.
ONLY a 4 month veg? I don't veg over 2 as I don't want 8' plants :D
 

THZZELJR

Active Member
Sorry I can only make my mothers for the next 4 months. Living restraints will not allow anything other than a small stealth for a few mothers. But I will have plenty of clones for the next go around :)
 

THZZELJR

Active Member
Looks like this info suggests that Peonidin a specific anthocyanin responsible for purple hues; can effect total yields of fresh fruit in a negative way. It also states that Cranberries are the highest source. I wonder if flushing with a extract of either would raise the amount of Peonidin is found in our ladies.

Peonidin is an O-methylated anthocyanidin, and a primary plant pigment. Peonidin gives purplish-red hues to flowers such as the peony, from which it takes its name, and roses. It is also present in some blue flowers, such as the morning glory.

Like most anthocyanidins it is pH sensitive, and changes from red to blue as pH rises. This happens because anthocyanidins are highly conjugated chromophores. When the pH is changed, the extent of the conjugation (of the double bonds) is altered, which alters the wavelength of light energy absorbed by the molecule. (Natural anthocyanidins are most stable in a very low pH environment; at pH 8.0, most become colorless.) At pH 2.0, peonidin is cherry red; at 3.0 a strong yellowish pink; at 5.0 it is grape red-purple; and at 8.0 it becomes deep blue; unlike many anthocyanidins, however, it is stable at higher pH, and has in fact been isolated as a blue colorant from the brilliant "Heavenly Blue" morning glory (Ipomoea tricolor Cav cv).
Because of its unusual color stability,a cafeyl-acylated buffered formulation of it has been patented for use as food coloring.

Peonidin, like many anthodcyanidins, has show potent inhibitory and apoptotic effects on cancer cells in vitro, notably metastatic human breast cancer cells.[SUP][1][/SUP] A very large question, however, has been raised about anthocyanidins' penetration and retention in human cells in vivo, due to their rapid elimination from the human body.

By far the greatest dietary source of peonidin is raw cranberries, which contain 42 mg per 100 g of fruit.[SUP][2][/SUP] Blueberries, plums, grapes, and cherries also contain significant amounts, ranging from 5 to 12 mg/100 g. Only fresh fruit has been shown to contain significant peonidin; frozen blueberries have been shown to contain almost none. It has also been isolated from raw black rice and black bananas.

The higher levels of peonidin in fresh fruit corresponds to the rule of thumb that more natural fruit is healthier. Specifically, the amount of phenolic compounds in cranberries have been found to be inversely correlated with fruit size and crop yiel
 

IAm5toned

Well-Known Member
thats all fascinating stuff... but what makes you think the root structure of cannabis will absorb these compounds?

sounds like putting carbs in the rez to me... :-?
 

THZZELJR

Active Member
[video=youtube;kMWa3Km_6bk]http://www.youtube.com/watch?v=kMWa3Km_6bk&amp;feature=related[/video]

[video=youtube;wT6lHvx3WDI]http://www.youtube.com/watch?v=wT6lHvx3WDI&amp;feature=mfu_in_order&amp;list=UL[/video]

These video state PH alone can change color, as well they mention the uptake of Aluminum in a solution has an effect.
 

THZZELJR

Active Member
thats all fascinating stuff... but what makes you think the root structure of cannabis will absorb these compounds?

sounds like putting carbs in the rez to me... :-?

I trying to find that info I would assume since it is soluble that it would. As the video I just posted says that the ability of a plant to absorb aluminum depends of the PH of the water.
 

THZZELJR

Active Member
thats all fascinating stuff... but what makes you think the root structure of cannabis will absorb these compounds?

sounds like putting carbs in the rez to me... :-?
As far as carbs in the res, I found there is a process to striip the anthocyanin on sugar. Thankfully it is a very powerful antioxidant and cancer fighter so a company has this readily available.
http://www.biolink.no/the-medox-story/category147.html

Activated Alumina is used in water filtration and anti acids so it is non toxic water soluble and about 10 dollars a lb it is most soluble in acidic solution which is where we want to be with anthicyanin and to inhibit N and boost Phosphorous

Streptomycin has been shown to inhibit chlorophyll (green) and increase Anthocyanin (purple red blue)
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC541594/pdf/plntphys00169-0111.pdf

It is also found in most hydro beneficial as a root fungal deterrent.
http://www.igrowhydro.com/info2-rootzone.aspx



 

GratefulJoe

Member
This is an interesting topic. Maybe my two cents can help you on your way. I am not sure on the comparison with cannabis but i do know that adjusting the PH of Hydrangeas will affect whether or not they color to red\pink or purple\blue. If you keep the PH of the Hydrangeas at 5.2 to 5.5 this will allow the plant to uptake aluminum which is used in the pigmentation process. Some gardeners will supplement with aluminum sulfate or, if organic, coffee grounds,fruit and vegetable peels, grass clippings, etc.,to help this process get started. Not sure if it applies here but hope it helps. :peace:
 

shagalicious

Active Member
This is an interesting topic. Maybe my two cents can help you on your way. I am not sure on the comparison with cannabis but i do know that adjusting the PH of Hydrangeas will affect whether or not they color to red\pink or purple\blue. If you keep the PH of the Hydrangeas at 5.2 to 5.5 this will allow the plant to uptake aluminum which is used in the pigmentation process. Some gardeners will supplement with aluminum sulfate or, if organic, coffee grounds,fruit and vegetable peels, grass clippings, etc.,to help this process get started. Not sure if it applies here but hope it helps. :peace:
i've got a buddy who pisses on his at different times to keep one plant a different color - it makes him chuckle
 

KingstonR

Member
don't know if ur a newb or not but higher ph is more alkaline and lower than 7 is acidic not the other way around.
The op had it right, or at least the original document did. > is the greater than sign. S a ph> 7 means a ph greater than 7. My elementary education kicking in, think of an alligators mouth opening for the larger side. If whatever is in question is at the alligators mouth it's greater than. Lol
 

Rizendell

Member
Just like with roses, if you add some food coloring to their water on the last couple days, it will leech into the buds. You don't want to starve your plants, that will only hurt your harvest.
 

greasemonkeymann

Well-Known Member
wanna smoke food coloring though?
How much has the FDA done research on THAT? I'm guessing very little to none. Soooo want to be the Guinea Pig? Could be harmless? but...
Cancer is baad...Mmmmkay?
 
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